Although her cropped 'do is quite convincing, her rep tells People that she's actually wearing a wig.

Dakota isn't the only Fanning making style news right now. It was just announced that her younger sister Elle, 13, is the new face of Marc by Marc Jacobs and will appear in the label's fall 2011 ad campaign. She follows in the footsteps of Dakota, who has been modeling for the designer since she was 13 and is currently the face of his new Oh Lola fragrance.